socks5systemz | f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69

General

Target

f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.exe
Size

4.8MB
MD5

d8cf6bead5bbde6f668bf8badad05287
SHA1

38d270107056f6894c1105f1456f70b7a24fc2ed
SHA256

f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69
SHA512

beeb233e06a7f0707a3599ca0b6d465744a22300e89eef8a2a2cb9b2f8672127677e4cac890ba31a870dbfec7ac838116d0303dfda9e2315e86e0a0f1f7a76be
SSDEEP

98304:mkVy5PrSOHA/92G6s7i0mNMTcv3GZezwfF1AO/b7+vjDTw9U4PNgA:WS2AkGd205W2Z9Z/3+vjDTyU46A

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

cefhuxb.net

http://cefhuxb.net/search/?q=67e28dd83f5ff27c445aaa4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff719c8e7919c3d

http://cefhuxb.net/search/?q=67e28dd83f5ff27c445aaa4e7c27d78406abdd88be4b12eab517aa5c96bd86ec94874a855a8bbc896c58e713bc90c91b36b5281fc235a925ed3e52d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9d9233c56b9010

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4608-87-0x0000000000990000-0x0000000000A32000-memory.dmp	family_socks5systemz
behavioral2/memory/4608-112-0x0000000000990000-0x0000000000A32000-memory.dmp	family_socks5systemz
behavioral2/memory/4608-113-0x0000000000990000-0x0000000000A32000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmpstarsaudioconverter.exestarsaudioconverter.exe

pid process

576 f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp
4176 starsaudioconverter.exe
4608 starsaudioconverter.exe
Loads dropped DLL 1 IoCs

Processes:

f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp

pid process

576 f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 152.89.198.214
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp

pid process

576 f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp

pid	process
576	f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp
4176	starsaudioconverter.exe
4608	starsaudioconverter.exe

pid	process
576	f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp

description	ioc
Destination IP	152.89.198.214

pid	process
576	f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.exef41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp

description	pid	process	target process
PID 3052 wrote to memory of 576	3052	f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.exe	f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp
PID 3052 wrote to memory of 576	3052	f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.exe	f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp
PID 3052 wrote to memory of 576	3052	f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.exe	f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp
PID 576 wrote to memory of 4176	576	f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp	starsaudioconverter.exe
PID 576 wrote to memory of 4176	576	f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp	starsaudioconverter.exe
PID 576 wrote to memory of 4176	576	f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp	starsaudioconverter.exe
PID 576 wrote to memory of 4608	576	f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp	starsaudioconverter.exe
PID 576 wrote to memory of 4608	576	f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp	starsaudioconverter.exe
PID 576 wrote to memory of 4608	576	f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp	starsaudioconverter.exe

C:\Users\Admin\AppData\Local\Temp\f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.exe
"C:\Users\Admin\AppData\Local\Temp\f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3052

C:\Users\Admin\AppData\Local\Temp\is-O4V6L.tmp\f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp
"C:\Users\Admin\AppData\Local\Temp\is-O4V6L.tmp\f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp" /SL5="$40242,4825700,54272,C:\Users\Admin\AppData\Local\Temp\f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:576

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter.exe
"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter.exe" -i
3⤵
- Executes dropped EXE
PID:4176

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter.exe
"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter.exe" -s
3⤵
- Executes dropped EXE
PID:4608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter.exe
Filesize
2.4MB

MD5
e05c14ee852ed293ba11885ccf3b4dcb

SHA1
39dab04c8893957729ecb0134bcdedb2f3cb958b

SHA256
bc8a7f0e2dc3a011dd44b8ff6bd4563e9f6cef2ebab7b01c4cfcc8c7742cd860

SHA512
b45eca41276d7e5db14d6c0995a6e7919bdc94c988bfb3cf5f1c271de8a934b27cec61b173b540f5c2d4e1e40a179185dcd46b5db8fface18bc48cbc6922b07e

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LLJE2.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-O4V6L.tmp\f41064c7b77a9afd40e857e52461b20e414baff528e3fc63d4cf23d44b72da69.tmp
Filesize
680KB

MD5
7b17001e9962a8c05608c4f1daf9ef32

SHA1
4e6761d6376029f4693d97ae693bdbdace2bbc92

SHA256
66588c4f0da8cd01e0b13b2f70f30e4f540d8ac299a3e4a218070c3097a8f262

SHA512
e973b087584bb1b8b2279a337e46f72b438018df405f5664cc5a8a427e25c3b1b163a3d6c685428846a38a6d5ee03bf1647d17478c62f5d8e45084acdbb73eca

Download Submit
memory/576-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/576-71-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3052-70-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3052-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3052-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4176-59-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4176-65-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4176-63-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4176-60-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-76-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-90-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-72-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-75-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-68-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-79-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-82-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-85-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-87-0x0000000000990000-0x0000000000A32000-memory.dmp

Filesize
648KB

Download
memory/4608-69-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-96-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-99-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-102-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-105-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-108-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-111-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-112-0x0000000000990000-0x0000000000A32000-memory.dmp

Filesize
648KB

Download
memory/4608-113-0x0000000000990000-0x0000000000A32000-memory.dmp

Filesize
648KB

Download
memory/4608-117-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download
memory/4608-120-0x0000000000400000-0x0000000000662000-memory.dmp

Filesize
2.4MB

Download

Analysis

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